This is the kernel Lite/2 commit. There are some requisite userland

changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
		Mount_std mounts will not work until the getfsent
		library routine is changed.

Reviewed by:	various people
Submitted by:	Jeffery Hsu <hsu@freebsd.org>

1 files changed, 30 insertions, 25 deletions

diff --git a/sys/miscfs/procfs/procfs_subr.c b/sys/miscfs/procfs/procfs_subr.c
index d9b3d2f..5ee78f0 100644
--- a/sys/miscfs/procfs/procfs_subr.c
+++ b/sys/miscfs/procfs/procfs_subr.c
@@ -34,7 +34,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)procfs_subr.c	8.4 (Berkeley) 1/27/94
+ *	@(#)procfs_subr.c	8.6 (Berkeley) 5/14/95
  *
  *	$FreeBSD$
  */
@@ -84,18 +84,21 @@ procfs_allocvp(mp, vpp, pid, pfs_type)
 	long pid;
 	pfstype pfs_type;
 {
-	int error;
+	struct proc *p = curproc;	/* XXX */
 	struct pfsnode *pfs;
+	struct vnode *vp;
 	struct pfsnode **pp;
+	int error;
 
 loop:
 	for (pfs = pfshead; pfs != 0; pfs = pfs->pfs_next) {
+		vp = PFSTOV(pfs);
 		if (pfs->pfs_pid == pid &&
 		    pfs->pfs_type == pfs_type &&
-		    PFSTOV(pfs)->v_mount == mp) {
-			if (vget(pfs->pfs_vnode, 0))
+		    vp->v_mount == mp) {
+			if (vget(vp, 0, p))
 				goto loop;
-			*vpp = pfs->pfs_vnode;
+			*vpp = vp;
 			return (0);
 		}
 	}
@@ -118,17 +121,18 @@ loop:
 	 */
 	MALLOC(pfs, struct pfsnode *, sizeof(struct pfsnode), M_TEMP, M_WAITOK);
 
-	error = getnewvnode(VT_PROCFS, mp, procfs_vnodeop_p, vpp);
-	if (error) {
+	if (error = getnewvnode(VT_PROCFS, mp, procfs_vnodeop_p, vpp)) {
 		FREE(pfs, M_TEMP);
 		goto out;
 	}
+	vp = *vpp;
+
+	vp->v_data = pfs;
 
-	(*vpp)->v_data = pfs;
 	pfs->pfs_next = 0;
 	pfs->pfs_pid = (pid_t) pid;
 	pfs->pfs_type = pfs_type;
-	pfs->pfs_vnode = *vpp;
+	pfs->pfs_vnode = vp;
 	pfs->pfs_flags = 0;
 	pfs->pfs_lockowner = 0;
 	pfs->pfs_fileno = PROCFS_FILENO(pid, pfs_type);
@@ -138,33 +142,41 @@ loop:
 		pfs->pfs_mode = (VREAD|VEXEC) |
 				(VREAD|VEXEC) >> 3 |
 				(VREAD|VEXEC) >> 6;
+		vp->v_type = VDIR;
+		vp->v_flag = VROOT;
+		break;
+
+	case Pcurproc:	/* /proc/curproc = lr--r--r-- */
+		pfs->pfs_mode = (VREAD) |
+				(VREAD >> 3) |
+				(VREAD >> 6);
+		vp->v_type = VLNK;
 		break;
 
 	case Pproc:
 		pfs->pfs_mode = (VREAD|VEXEC) |
 				(VREAD|VEXEC) >> 3 |
 				(VREAD|VEXEC) >> 6;
+		vp->v_type = VDIR;
 		break;
 
 	case Pfile:
-		pfs->pfs_mode = (VREAD|VWRITE);
-		break;
-
 	case Pmem:
 		pfs->pfs_mode = (VREAD|VWRITE) |
 				(VREAD) >> 3;;
 		break;
 
 	case Pregs:
-		pfs->pfs_mode = (VREAD|VWRITE);
-		break;
-
 	case Pfpregs:
 		pfs->pfs_mode = (VREAD|VWRITE);
+		vp->v_type = VREG;
 		break;
 
 	case Pctl:
+	case Pnote:
+	case Pnotepg:
 		pfs->pfs_mode = (VWRITE);
+		vp->v_type = VREG;
 		break;
 
 	case Ptype:
@@ -173,14 +185,7 @@ loop:
 		pfs->pfs_mode = (VREAD) |
 				(VREAD >> 3) |
 				(VREAD >> 6);
-		break;
-
-	case Pnote:
-		pfs->pfs_mode = (VWRITE);
-		break;
-
-	case Pnotepg:
-		pfs->pfs_mode = (VWRITE);
+		vp->v_type = VREG;
 		break;
 
 	default:
@@ -316,8 +321,7 @@ vfs_getuserstr(uio, buf, buflenp)
 		return (EMSGSIZE);
 	xlen = uio->uio_resid;
 
-	error = uiomove(buf, xlen, uio);
-	if (error)
+	if (error = uiomove(buf, xlen, uio))
 		return (error);
 
 	/* allow multiple writes without seeks */
@@ -339,6 +343,7 @@ vfs_findname(nm, buf, buflen)
 	char *buf;
 	int buflen;
 {
+
 	for (; nm->nm_name; nm++)
 		if (bcmp(buf, nm->nm_name, buflen+1) == 0)
 			return (nm);